diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index abe488bac50b..6db21dad0efe 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c
@@ -4,6 +4,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <sched.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -488,6 +489,10 @@ FIXTURE(tun)
 
 FIXTURE_SETUP(tun)
 {
+	if (unshare(CLONE_NEWNET))
+		SKIP(return, "Cannot create network namespace: %s",
+		     strerror(errno));
+
 	memset(self->ifname, 0, sizeof(self->ifname));
 
 	self->fd = tun_alloc(self->ifname);
@@ -732,6 +737,10 @@ FIXTURE_SETUP(tun_vnet_udptnl)
 	struct sockaddr_storage ssa, dsa;
 	void *sip, *dip, *smac, *dmac;
 
+	if (unshare(CLONE_NEWNET))
+		SKIP(return, "Cannot create network namespace: %s",
+		     strerror(errno));
+
 	flags = (variant->is_tap ? IFF_TAP : IFF_TUN) | IFF_VNET_HDR |
 		IFF_MULTI_QUEUE | IFF_NO_PI;
 	features = TUN_F_CSUM | TUN_F_UDP_TUNNEL_GSO |